ML17309A807

Forwards Rev 0 to Plant Administrative Procedure 2-0010024, Inservice Testing Program for Pumps & Valves.

ML17309A807
Person / Time
Site:	Saint Lucie
Issue date:	12/04/1995
From:	SAGER D A FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17228B347	List: ML17228B346 ML17309A807
References
L-95-320, NUDOCS 9512110297
Download: ML17309A807 (35)

Text

PRIGRITY3(ACCELERATED RIDSPROCI'.SSIiG REGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:9512110297 DOC.DATE:

95/12/04NOTARIZED:

NODOCKETNFACIL:50-389 St.LuciePlant,Unit2,FloridaPower&LightCo.05000389AUTH.NAMEAUTHORAFFILIATION SAGER,D.A.

FloridaPower&LightCo.RECIP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)

SUBJECT:

ForwardsRev0toPlantAdministrative Procedure 2-0010024, "Inservice TestingProgramforPumps&Valves."DISTRIBUTION CODE:A047DCOPIESRECEIVEDLTRENCLSIZE:TITLE:ORSubmittal:

Inservice/Testing/Relief fromASMCode-GL-89-04/NOTESRECIPIENT IDCODE/NAME PD2-1LANORRIS,JINTERNAL:

ACRS01EEMCBNUDOCS-ABSTRACT RES/DET/EMMEB EXTERNAL:

LITCOANDERSONNRCPDRCOPIESLTTRENCL111160111111111111RECIPIENT IDCODE/NAME PD2-1PDAEOD/SPD/RAB NRR/DE/ECGB NRR/DE/EMEB OGC/HDS3RES/DSIR/EIB NOACCOPIESLTTRENCL11111111101111NOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEiVKSTE!CONTACTI'IIEDOCL'i!ENT CONTROLDESk,ROOMPl.37(EXT.504.~0S3)TOELIXI!NATEYOL"RiAXILPl<OilDISTRIBUTION LISTSI'ORDOCLMEN'I'SYOL'ON"I'II~D!TOTALNUMBEROFCOPIESREQUIRED:

LTTR21ENCL14 FloridaPower&LightCompany,P.O.Box128,FortPierce,FL34954-0128 December4,1995r,-95-320 10CFR50.410CFR50.55aU.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555RE:St.LucieUnit2DocketNo.50-389In-Service TestProgram-Revision2SecondTen-YearIntervalResonsetoSafetEvaluation 0enItemsOnMay2,1994,NRCissuedasafetyevaluation (SE)onthesecondten-yearintervalin-service test(IST)program,Revision0,forSt.LucieUnit2.IncludedwiththeNRCSEwasacopyoftheNRCcontractor's technical evaluation report(TER).Forcertainreliefrequests, implementation wasgranted,authorized, orapprovedasacceptable providedtheactionitemsoranomalies identified inSection5oftheTERwereaddressed withinoneyearofthedateoftheSEorbytheendofthenextrefueling outage,whicheverwaslater.Attachment 1providesaresponseorclarification toeachTERactionitem.Severaloftheitemsidentified intheTERwerepreviously addressed inRevision1oftheISTprogramwhichwassubmitted totheNRCbyFPLletterL-94-212datedAugust22,1994.ThisrevisionoftheUnit2secondten-yearintervalISTprogramhasbeenissuedasplantadministrative procedure, AP2-0010024 Revision0.Acopyofthisprocedure isenclosedforyourinformation.

Pleasecontactusifthereareanyquestions aboutthissubmittal.

Verytrulyyours,D.A.ViceSt.LgeresidentiePlantDAS/GRMcc:StewartD.Ebneter,RegionalAdministrator, RegionII,USNRCSeniorResidentInspector, USNRC,St.LuciePlantADGCKpgpp()pBp PDRanFPLGroupcompany h

St.LucieUnit2DocketNo.50-389In-Service TestProgram-Revision2SecondTen-YearIntervalResponsetoSafetyEvaluation OpenItemsIn-Service TestProgramRevision2SecondTen-YearIntervalResponsetoNRCSafetyEvaluation OpenItems12/04/95....

9512110297 BACKGROUND OnSeptember 15,1992,FPLletterL-92-247transmitted Revision2ofthefirstten-yearintervalISTprogramtotheNRC.Thisrevisionwasacompleterevisionoftheprogramtoincorporate theguidanceofGenericLetter89-04,Guidanceondeveloping Acceptable Inservice TestingPrograms.

OnAugust3,1993,FPLletterL-93-184transmitted Revision0ofthesecondten-yearintervalISTprogramtotheNRC.Thesecondten-yearintervalbeganonAugust8,,1993.OnAugust23,1993,NRCissuedthesafetyevaluation (SE)onRevision2ofthefirstten-yearintervalISTprogram.ThisSEincludedacopyoftheNRCcontractor's technical evaluation report(TER).Section4oftheTERincludedactionitemswhichtheNRCrequested FPLtoaddresswithinoneyearofthedateoftheSEorthenextrefueling outagewhicheverwaslater.OnAugust22,1994,FPLletterL-94-212transmitted Revision1ofthesecondten-yearintervalISTprogramtoaddressNRCopenitemsidentified intheAugust23,1993SEandNRCcontractor's TER.Theseopenitemswerecarriedforwardfromthefirstten-yearintervalISTprogram.OnMay2,1994,theNRCissuedtheSEforRevision0ofthesecondten-yearintervalISTprogram.IncludedwiththeNRCSEwasacopyoftheNRCcontractor's technical evaluation report(TER).Forcertainreliefrequests, implementation wasgranted,authorized, orapprovedasacceptable providedtheactionitemsoranomalies identified inSection5oftheTERwereaddressed withinoneyearofthedateoftheSEorbytheendofthenextrefueling outage,whicheverwaslater.Severaloftheseitemswerepreviously addressed inRevision1ofthesecondten-yearintervalISTprogram.Thissubmittal providesaresponsetotheremaining actionitemsandanomalies.

Therecommended actionsfromeachsubpartoftheTERSection5havebeenlistedbelowalongwiththeSt.Lucieresponse.

Foritemswhichduplicated openitemsfromtheAugust23,1993NRCSE,andwhichwerepreviously addressed inRevision1ofthesecondten-yearintervalISTprogramonlyacrossreference isprovided.

TERSection5.1NRCRecommended Action:TheISTProgramdoesnotincludeadescription of:howthecomponents wereselected, howtestingrequirements wereidentified foreachcomponent, orthesafetyfunctionofthevalves.Thereviewperformed forthisTERdidnotincludeverification thatallpumpsandvalveswithinthescopeof10CFR50.55aandSectionXIarecontained intheISTProgram,anddidnotensurethatall 0

applicable testingrequirements havebeenidentified.

Thelicenseeisrequested.to includethisinformation intheISTProgram.Theprogramshoulddescribethedevelopment process,suchasalistingofthedocuments used,themethodofthebasisforcategorizing valves,andthemethodorprocessusedformaintaining theprogramcurrentwithdesignmodifications orotheractivities performed under10CFR50.59.Additionally, foreachinterval, thelicenseeshouldmaintainanaccuratestatusofthereliefrequestsincluding theirrevisionandNRCapproval.

St.LucieResponse:

Thisaction"itemisidentical toitem4.1oftheNRCSEissuedAugust23,1993.FPLresponded tothisactionitemintheresponsetothepreviousSEandincorporated thechangesintoRevision1ofthesecondten-yearintervalISTprogramwhichwastransmitted byFPLletter,L-94-212datedAugust22,1994.NRCRecommended Action:Thelicenseehasdeletedthedieselairstartandfueloil,andinstrument airsystemfromtheISTProgram.ThelicenseeexplainsinthesummaryofchangesbetweenRevision2oftheFirstIntervaltoRevision0ofthe,SecondIntervalthatthesesystemsarenotrequiredtobebuilttoASMEClass1,2,or3standards perRegulatory Guide1.26,but"werebuilttoClassstandards attheoptionofFPL.Inaccordance withIWA-1300(e)

(sic),including thepumpsandvalvesinthesesystemsintheISTprogramwasattheoptionofFPLandnotarequirement.

Paragraph IWA-1320(e) statesthat"Ifsystemssafetycriteriapermitasystemtobenonnuclear safetyClassandanOwneroptionally classifies andconstructs thatsystem,oraportionthereof,toClass2or3requirements, theapplication oftherulesof(a)aboveisattheoptionoftheOwnerandisnotarequirement ofthisDivision."

Section3.2.2oftheFSAR,however,statesthatthedieselsystemsaresafety-related QualityGroupCcomponents andarerequiredtobebuilttoSectionIII,Class3requirements.

Components wereclassified pertheFSARinaccordance withANSIN18.2,aswellasRegulatory Guide1.26.Theregulations requirepumpsandvalvesclassified bytheOwnerasClass1,2,or3tobetestedinaccordance withSectionXI.Theregulations donotlimitthescopeoftheISTprogramtoonlythosesystemsdiscussed inRegulatory Guide1.26.TheISTprogramscopeshouldbeconsistent withtheclassification ofcomponents inthesafetyanalysisreport.TheISTProgramorFSARshouldberevisedaccordingly.

St.LucieResponse:

Thedieselairstartandfueloil,andinstrument airsystemswerepreviously intheISTprogrambecausetheywerebuiltandaremaintained toQualityGroupBandCrequirements.

Additionally, FSARTable3.2-1liststhedieselfueloilsystemasQualityGroupC(ASMEClass3).However,theseclassifications werepreviously considered asoptionalupgradessinceRegulatory Guide1.26doesnotrequirethesesystemstobeincludedinQualityGroupsA,B,orC.Regulatory Guide1.26isthegoverning documentforsystemQualityGroupclassifications sinceFSARSection3.2.2statesthat"Systemsafetyclassifications anddesignandfabrication requirements meettheintentofRegulatory Guide1.26,QualityGroupClassifications andStandards forWater-,Steam-,andRadioactive-Waste-Containing Components ofNuclearPowerPlants,February1976(R3)."ThesesystemsdonotrequiretestingpertheCodesinceParagraph IWA-1320.(e) statesthat"Ifsystemssafetycriteriapermitasystemtobenonnuclear safetyClassandanOwneroptionally classifies andconstructs thatsystem,oraportionthereof,toClass2or3requirements, theapplication oftherulesof(a)isattheoptionoftheOwnerandnotarequirement ofthisDivision."

Inotherwords,thosesystemswhichwereconstructed toClass2or3attheoptionoftheOwnerdonotfallunderthescopeofSectionXI,andtherefore arenotrequiredtobetestedtotheCodestandards.

Thedieselairstartandfueloilsystemwerereviewedbyownerengineering evaluation toconfirmthattheclassification asQualityGroupCwasaresultofowneroptionalupgrade.Theevaluation concluded thatthiswasindeedthecasebasedondetaileddiscussion ofthequalitygroupratingsforthedieselgenerator auxiliary systemsinNUREG-0843, "SafetyEvaluation Reportrelatedtotheoperation ofSt.LuciePlant,UnitNo.2"(SE)October1981.Section9.5.4notesthatthecomponents areintentionally overdesignedandareconsidered equivalent toasystemdesignedtoASMEsectionIIIClass3requirements.

FSARSection3.2.2alsostatesthat"Systemsimportant tosafetyandthecontainment boundaryareclassified inaccordance withANSIN18.2,..."

Thedieselairstartandfueloilsystemsareclassified asSafetyClass3byANSIN18.2.Recognizing thatthesystemsareimportant tonuclearsafety,testingofthesafetyrelatedpumpsandvalvesisrequired.

Appropriate testing'commensurate tothesystemssafetyfunctionhavebeenandwillcontinuetobeperformed, butnotunderthejurisdiction oftheASMEISTprogram.Thedieselairstartandfueloilsystemswillstillbemaintained totheQualityGroup3classification towhichtheyhavebeenupgradedto.RevisiontotheFSARhasbeenmadeasaresultoftheevaluation toreflecttheoptionalownerupgradestatusofthesesystems.ThoughtheFSARdesignbasesstatesthat"Thesystemservesnosafetyfunction...",

aseparateevaluation oftheinstrument airsystemcouldnotconfirmthestatusforparticular valvesasanowneroptionalupgradetoQualityGroupBorCbasedonthedesignclassification requirements unrelated totheoverallsystemfunction.

Therefore, thesequalitygroupBvalveswhichserveasafetyfunctionhavebeenincludedinthescopeofthecurrentISTprogramrevision.

DuringthetimeinwhichthesevalvesdidnotappearintheISTprogramdocument, St.Luciecontinued totest thesevalvesbytheexistingplantprocedures atthefrequency andtotherequirements ofthecurrentISTprogram.TERSection5.2NRCRecommended Acti.on:TheISTProgram's scopewasreviewedforselectedsystems.ThepumpsandvalvesintheAuxiliary Feedwater System,MainSteam,ChemicalandVolumeControlSystemandComponent CoolingWaterSystemwerereviewedagainsttherequirements ofSectionXIandtheregulations.

TheFSARwasusedtodetermine ifthespecified valvecategories andvalvefunctions wereconsistent withtheplant'ssafetyanalyses.

Thereviewresultsshowedcompliance withtheCode,exceptforthefollowing items.ThelicenseeshouldreviewtheseitemsandmakechangestotheISTProgram,whereappropriate.

Additionally, thelicenseeshouldverifythattherearenotsimilarproblemswiththeISTProgramforothersystems.St.LucieResponse:

Thefunctions ofallQualityGroupA,B,andCvalveshaverecentlybeenreviewedtoupgradetheISTProgramsBasisDocumentation.

ThisBasisDocumentation identifies andexplainswhyindividual valvesareincludedornotincludedintheISTProgram.TheFSARandotherplantdocuments wereusedinthisupgradetodetermine ifthespecified valvecategories andvalvefunctions warrantthevalvesinclusion intheISTProgram.Manyofthevalvesidentified havebeenincludedorexcludedfromtheISTProgramforoneofthefollowing reasons:1.Wheremultiplecomponents arecapableofperforming thesameequivalent andredundant specified function(eg.multiplevalvesclosinginseries)andwherethecomponents arenotsuppliedbyalternate andredundant powersupplies, onlyoneneedbeincludedintheprogram.Thecomponent mustbereliedupontoperformandnotsimplyhavethecapability ofperformance.

Thisexemption onlyapplieswherelicensing documents donottakecreditforthedesignedredundancy.

Components performing aredundant functionshallbeincludedinthetestingprogramif,intheprocessofanalysisorlicensing justification, theyarereliedupontobeoperable.

2.Valvesinstalled primarily forthepurposeofproviding convenient operational flexibility (eg.systemcross-connects) thatarenotrequiredtooperate,assumingthatthedesignated first-line systemsandcomponents operatesatisfactorily, neednotbeincludedintheISTProgram.Thisdoesnotexcludeactivevalvesthatcouldbecalleduponasaresultofoptionalsystemlineupsexistingpriortotheinitiation ofanaccident.

NRCRecommended Action:

A.Auxiliary Feedwater andMainSteamSystems-SincepartoftheAuxiliary Feedwater SystemisshownontheflowdiagramfortheMainSteamSystem,theresultsofthereviewforthesetwosystemsarepresented jointly.Thereference drawingsare:2998-G-080, Sheet2of2,Rev.18,"FlowDiagram-Feedwater 8Condensate Systems,"

and2998-G-079, Sheet-1of6,Rev.16,"FlowDiagram-MainSteamSystem-SheetNo.1."Thefollowing itemswereidentified:

1.Thelicenseeshouldreviewthebasisforincluding andexcluding lockedopenmanualvalvesintheProgram.Specifically, thefollowing lockedopenmanualvalveswhicharelocatedontheAFWdischarge linesupstreamofthesteamgenerators anddownstream ofnormallyclosedmotoroperatedvalvesareincludedintheprogram:2I-V-09120, 2I-V-09152, 2I-V-09136, and2I-V-09158 (Thelicenseeshouldnotethatthedrawingcoordinates areincorrectly listedintheprogramtablefortheabovevalves),whilethefollowing valveslocatedimmediately upstreamofthenormallyclosedmotoroperatedvalvesarenotincludedintheprogram:2I-V-09108,2I-V-09124, and2I-V-09140.

(ThereareotherlockedopenmanualvalvesontheAFWpumps'ecirculation linestothecondensate storagetankandalsoonthepumps'uction lineswhicharenotincludedintheprogram)St.LucieResponse:

LockedopenmanualvalvesareincludedintheProgramonlyiftheyarereliedupontoperformaspecificfunctioninshuttingdownthereactortothecoldshutdowncondition orinmitigating theconsequences ofanaccident.

Plantemergency operating procedures directthattheAFWdischarge linemanualoperatedvalves:V-09120,V-09152,V-09136,andV-09158beclosedtoisolatetheaffectedsteamgenerator intheeventofasteamgenerator tuberupture.Thesevalvesarereliedupontoclosetocontroltheunrestricted releaseoffissionproductsandaretherefore includedintheprogram.Theprogramtablehasbeenrevisedtocorrectly listthedrawingcoordinates fortheabovevalves.NRCRecommended Action:2.Forthefollowing checkvalves,thelicenseeshouldverifythatthevalvesdonotperformasafetyfunctionintheclosedposition:

2I-V-09252 and09294,steamgenerator feedwater linecheckvalvesinsidecontainment.

2I-V-09107, 09119,09123,and09135,AFWpumps'ischarge linecheckvalvesdownstream ofnormallyclosedmotoroperatedvalves.2I-V-09139, 09151,and09157,AFWpumps'ischarge linecheckvalvesimmediately adjacenttopumpdischarge.

St.LucieResponse:

V-09252andV-09294:Isolation ofthesteamgenerators isprovidedbythemainfeedwater blockvalvesandauxiliary feedwater isolation valves,therefore closureofthesevalvesisnotrequired.

V-09119,V-09135,V-'09151, andV-09157:Theonlyclosurefunctionistopreventreverseflowintheeventofapassivefailureoftheauxiliary feedwater headerupstreamofthesevalves.Thisisaredundant functiontothenormallyclosedauxiliary feedwater isolation motoroperatedvalves,MV-09-09throughMV-09-12whicharelocatedincloseproximity withinthequalitygroupBboundaryandarecreditedwithperforming thecontainment isolation functionaswell.Therefore, testingtheclosurefunctionofthesevalvesisnotrequired.

V-09107,V-09123,andV-09139:Theauxiliary feedwater supplylinesareseparated bynormallyclosedcross-tie valves,closureofthesevalveisnotreliedupon.Thesevalveswouldonlyberequiredtocloseifisdesiredtofeedthe"2B"steamgenerator withthe"2A"auxiliary feedwater pump,orvice-versa.

Sincetherearealreadytwoindependent, redundant AFWflowpathstoeachS/G,thisadditional flowpathisnotrequired.

NRCRecommended Action:B.Component CoolingSystem-Thereference drawingforthissystemis2998-G-083, Rev.18,"FlowDiagramComponent CoolingSystem."Thefollowing itemswereidentified:

1.Forthecomponent coolingsurgetank,diaphragm

'operated ventvalve2-RCV-14-1, anditsaccompanying solenoidvalveRSE-14-1, ontopofthetankareshownasinterlocked onahighradiation signal,yetneithervalveislistedintheprogramtables.Thelicenseeshouldverifythatthesevalvesdonotperformasafetyfunction.

St.LucieResponse:

RCV-14-1:

ThisqualitygroupD,threewayvalvenormallyventstheCCWsurgetanktoatmosphere.

OnaCCWhighradiation signal,itshiftstoventthetanktothewastemanagement systemintheeventthatcomponent coolingpipinginsidecontainment isdamaged.SincepassivefailureoftheCCWpipinginsidecontainment isnotpostulated asaconsequence ofanaccidentand,ifitoccurred, thelikelyresultwouldbeleakageintothecontainment, testingofthisvalveisnotrequired.

NRCRecommended Acti.on:2.CCWPumpssuctionanddischarge headerinter-tie valvesMV-14-1andMV-14-3areshownontheflowdiagramasnormallyclosedwhiletheprogramtablesindicatethatthenormalpositionisopen.Similarly, containment coolingunitssuctionanddischarge valves MV-14-9toMV-14-16areshownontheflowdiagramaslockedopenwhiletheprogramtablesindicateonlythatthenormalpositionisopen.Thelicenseeshouldreviseeitherthedrawingortheprogramtablesasappropriate.

St.LucieResponse:

TheCCWPumpssuctionanddischarge headerinter-tie valvesMV-14-1andMV-14-3andthecontainment coolingunitssuctionanddischarge valvesMV-14-9toMV-14-16havebeenremovedfromtheISTProgram.TheCCWpumpsuctionanddischarge headerinter-tie valvesMV-14-1andMV-14-3areopenedintheeventthateitherthe2Aor2BCCWpumpfails.The2Cpumpmaythenbealignedtothefailedpumpsheaderbyrepositioning, ifnecessary, theheaderinter-tie valves.Althoughthismaybe'animportant

function, itisnotexpectedtoberequiredduringanaccidentscenariosincetworedundant fullcapacitypumpsandessential headersareprovidedtoassureadequatecoolingcapacityifonesystemfails.Itisnotexpectedthatthe2Cpumpwouldberequiredtobealignedtothealternate headerduringanaccidentscenariounlessthesystemissubjected toseveralconcurrent activeandpassivefailures, therefore, testingisnotrequired.

Thecontainment coolingunitssuctionanddischarge valvesMV-14-9toMV-14-16arelockedopentoprovidecontainment coolingduringaLOCA.Thisvalveisnotrequiredtocloseforcontainment isolation sincethecontainment fancoolersandassociated pipingformthecontainment boundary.

NRCRecommended Action:C.ChemicalandVolumeControlSystem(CVCS).Thereference drawingsforthissystemwere:2998-G-078, Sheet120,Rev.ControlSystem(Sheet1)"2998-G-078, Sheet121,Rev.ControlSystem(Sheet2)"2998-G-078, Sheet122,Rev.ControlSystem(Sheet3)"4,"FlowDiagram-Chemical&Volume5,"FlowDiagram-Chemical&Volume5,"FlowDiagram-Chemical&VolumeThefollowing itemswereidentified:

1.OnSheet2,checkvalvesV-2112(G-3),onthenitrogensupplylinetothevolumecontroltank(VCT),V-2188(F-5),ontheboricacidmakeupandprimarywatermakeupblendinglinetotheVCT,andV-2308(F-3),onthedischarge ofthechemicaladditionmeteringpump,formtheboundarybetweensafetyclassandnonsafetyclasspipingyetnoneofthethreevalvesareintheISTProgramforeitheranopenorclosetest.Thelicenseeshouldverifywhether7, thesevalvesshouldbeincludedintheprogram,andrevisetheprogram,asnecessary.

St.LucieResponse:

V-2112:ThisvalveopenstoadmithydrogengastomaintainablanketgasintheVCTduringnormaloperations ortoadmitnitrogengasduringmaintenance periodstocontrolRCSwaterchemistry.

Neitherofthesefunctions arerequiredinshuttingdownareactortothecoldshutdowncondition orinmitigating theconsequences ofanaccident.

FailureofthisvalvetoclosewouldnotdisabletheVCTbecausethegassupplylinepenetrates theVCTaboveitsnormaloperating levelthusnoinventory wouldbelost.V-2118:ThisvalveopensiftheSITsarealignedtotheVCTtoprovideboratedwatertomaintainRCSinventory duringplantcooldown.

TheSIT/VCTintertieisrequiredforplantcooldownshouldatornadorendertheRWTandPWTinoperable.

Duringanaccidentthischeckvalveclosestopreventconcentrated boricacidfrombeingbackfedintotheVCT.Thisfunctionisnotrequiredasitisredundant withthatofV-2501,VCTdischarge isolation valve.V-2308:Thisstop-check valveisonlyopenedwhileinjecting chemicals intotheCVCSsystem.Addingchemicals totheCVCSisamaintenance itemonly,anddoesnotperformaspecificfunctioninshuttingdownareactortothecoldshutdowncondition orinmitigating theconsequences ofanaccident.

Normally, V-2308isclosedusingitshandwheel topreventanybackflowintothenon-seismic chemicaladditionpiping.Inthisclosedposition, thevalveactsasapassiveisolation valveandtherefore doesnotrequiretesting.NRCRecommended Action:2.IntheFSAR,'jl9.3.4.3.2, reference ismadetoheat-traced pipingreliefvalveswhichareprovidedforthoseportionsoftheboricacidsystemthatareheattracedandcanbeisolatedindividually.

Thevalvesrelievethemaximumfluidthermalexpansion ratethatwouldoccurifmaximumduplicate heattracingpowerwereinadvertently appliedtotheisolatedline.Thesevalvesappear'nSheet2asV-2171,V-2631,V-2632,V-2634,V-2636,V-2639,V-2641andV-2648.However,noneofthesevalvesisincludedintheISTProgram.Thelicenseeshouldverifywhetherthesevalvesshouldbeincludedintheprogram,andrevisetheprogram,asnecessary.

St.LucieResponse:

PSLrecentlyloweredtheboricacidconcentration requirements fortheboricacidmakeupsystem.Thischangeallowsfortheheattracingtobedeenergized thuseliminating theneedforthereliefvalvestoprotectthepipingfromthermalexpansion oftheboricacidsolution.

Thesevalveshavebeenphysically removedfromthe CVCSsystem.Thesevalvesdonotappearonrevision16todrawing2998-G-078, Sheet121,"FlowDiagram-Chemical&VolumeControlSystem(Sheet2)".NRCRecommended Action:3.OnSheet2,checkvalvesV-2118andV-2674(bothF-4)areontheoutletlineoftheVCTleadingtothesuctionofthechargingpumpsandalsoupstreamoftheconnection fromtheboricacidmakeuppumpsdischarge tothechargingpumps'uction.

Althoughbothvalvesareincludedintheprogram,theyareonlytestedintheopenposition.

Thelicenseeshouldverifywhetherthevalvesperformasafetyfunctionintheclosedpositionbypreventing backflowintotheVCTwhentheboricacidmakeuppumpsareinoperation, andrevisetheprogram,asnecessary.

St.LucieResponse:

V-2118andV-2674:ThesecheckvalvesarenotrequiredtoclosebecausetheVCTdischarge isolation valveV-2501canbeclosedfromthecontrolroomandautomatically closesonSIAStopreventconcentrated boricacidfrombeingbackfedintotheVCT.NRCRecommended Action:4.OnSheet2,checkvalveV-2191(E-3)isonalineleadingfromtherefueling watertank(RWT)tooutletlineoftheVCTwhichinturnleadstothechargingpumpsuction.ItappearsthatthisvalveopenstoallowthechargingpumpstoprovideborationoftheRCSusingtheRWTtoachieveshutdowncoolingconditions.

Insuchacase,thenormallyclosedmotor-operated valveV-2504immediately upstreammustbeopensothatitdoesnotappearthatV-2504couldbereliedupontopreventreverseflow.AlthoughV-2191isintheProgram,itisonlytestedintheopenposition.

ThelicenseeshouldverifywhetherV-2191performsasafetyfunctionintheclosedposition, bypreventing reverseflowfromothersourcessuchasthechemicaladditionmeteringpumpandthecontentsoftheVCT,andrevisetheprogram,asnecessary.

St.LucieResponse:

V-2191:Closureofthisvalveisnotrequiredasthisfunctionisprovidedbynormallyclosedisolation valve,V-2504.Additionally, ifV-2504wereopenandV-2191failedtocloseanyinventory divertedtotheRWTwouldstillbeavailable foremergency borationfromtheRWT.NRCRecommended Action:5.IntheFSAR,99.3.4.3.2, V-2435isdescribed asthecharginglinethermalreliefvalvewhichisaspringloadedcheckvalvedownstream oftheregenerative heatexchanger.

Thevalveissized torelievethemaximumfluidthermalexpansion ratethatoccursifhotletdownflowcontinued afterchargingflowwasstoppedbyclosingthecharginglinedistribution valves.ThevalveappearsonSheet3(B-7).However,thevalveisnotincludedintheprogramforeitheranopenorclosetest.Thelicenseeshouldverifywhetherthisvalveshouldbeincludedintheprogram,andrevisetheprogram,asnecessary.

St.LucieResponse:

V-2435:Intheunlikelyeventthatthechargingheaderisisolatedandhotfluidcontinues, toflowthroughtheletdownsideoftheregenerative heatexchanger, thefluidinthechargingsideoftheheatexchanger wouldbesubjecttoexpansion.

Undertheseconditions, thisvalveisdesignedtoopen,thusproviding thermalreliefprotection fortheheatexchanger andrelatedpiping.Duringanaccidentscenarioitisnotexpectedthatsuchconditions wouldexistnoristhisconsidered tobeasafetyfunction, thus,testingofthisvalvetoopenisnotrequired.

Thevalveisnotrequiredtoclosetoperformasafetyfunction.

Thisvalveisnotatahighpressure/low pressureinterface.

Passivefailureof,upstreampipingisnotconsidered credibleasitisdesignedtooperateatpressures exceeding thenormalRCSpressure.

Nosinglefailureofanyactivecomponent canoccurthatwoulddivertflowfromtheRCSthroughthechargingheaderifthisvalveweretofailtoclose.Containment isolation valveV-2523canalsobeclosedifrequired.

Additionally atleastonechargingpumpwillbeavailable tosupplyflowthroughthisvalveduringanysinglefailurescenario.

NRCRecommended Action:6.OnSheet3,checkvalvesV-2431(D-S),onthepressurizer auxiliary sprayline,andV-2432(C-8)andV-2433(B-S),onthecharginglineconnections totheRCS,arealllocatedinsidecontainment andappeartoformpartofthereactorcoolantpressureboundary(i.e.,formingtheboundarybetweenClass1andClass2piping).Althoughthevalvesareincludedintheprogram,theyareonlydesignated fortestingintheopenposition.

Thelicenseeshouldverifywhetherthevalvesperformasafetyfunctionintheclosedposition, andrevisetheprogram,asnecessary.

St.LucieResponse:

V-2431,V-2432,V-2433:Thesevalvesarenotrequiredtoclosetoperformasafetyfunction.

Thesevalvesarenotatahighpressure/low pressureinterface.

Passivefailureofupstreampipingisnotconsidered credibleasitisdesignedtooperateatpressures exceeding thenormalRCSpressure.

Nosinglefailureofanyactivecomponent canoccurthatwoulddivertflowfromtheRCSthroughthechargingheaderifthesevalvesweretofailtoclose.Isolation ValvesSE-02-1,SE-02-2,SE-02-3,SE-02-4andV-2523canalsobeclosedifrequired.

Additionally atleastonecharging10 pumpwillbeavailable tosupplyflowthroughthisvalveduringanysinglefailurescenario.

TERSection5.2NRCRecommended Action:(2ndste5.2)Asdiscussed intheTERevaluation fornumerousreliefrequests, specificportionsofOMa-1988, Parts6and10maybeutilizedwithoutrelief,providedallrelatedrequirements areimplemented.

Approvalisrecommended pursuantto550.55a%(f)(4)(iv).

TheuseofspecificportionsofPart6or10andanyrefueling outagejustifications should,however,bedocumented intheISTProgram.Implementation ofrelatedrequirements issubjecttoNRCinspection.

St.LucieResponse:

Thisactionitemisidentical toitem4.2oftheNRCSEissuedAugust23,1993.FPLresponded tothisactionitemintheresponsetothepreviousSE.TERSection5.3NRCRecommended Action:Section4.2oftheISTProgramstatesthatthevalvetestfrequency maybeextendedby25%,asallowedbytheTechnical Specifications.

Theextension oftestintervals shouldnotbeappliidtosafetyandreliefvalvestestedinaccordance withtheintervals definedinSectionXI,becausetheTechnical Specifications donotaddressthesetestintervals.

St.LucieResponse:

Thisactionitemisidentical toitem4.3oftheNRCSEissuedAugust23,1993.FPLresponded tothisactionitemintheresponsetothepreviousSE.TERSection5.4NRCRecommended Action:InGenericPumpReliefRequestPR-2,thelicenseehasrequested reliefconcerning portableinstruments usedfortemperature andspeedmeasurement.

Whenusingtemporary instruments, thelicenseeshouldensurethattheinstruments arecalibrated priortouseandaretraceable totheinservice testrecords.(TERSection2.1.2)St.LucieResponse:

Thisactionitemisidentical toitem4.4oftheNRCSEissuedAugust23,1993.FPLresponded tothisactionitemintheresponsetothepreviousSE.11 0

TERSection5.5NRCRecommended Action:InPumpReliefRequestsPR-8,PR-ll,andPR-15,thelicenseeisproposing tocalculate pumpsuctionpressurebasedonmeasuring tankorinletstructure levels.Calculation ofinletpressurebasedonthemeasuredlevelprovidesanacceptable alternative methodofdetermining inletpressure, providedthecalculation isproperlyproceduralized, andtheaccuracyiswithintheaccuracyrequiredbytheCodeusingdirectmeasurement.

Thisshouldbedocumented inthetestrecordsandbeavailable forreview.(TERSections2.2.1,2.3.1,2.4.1)St.LucieResponse:

Thisactionitemisidentical toitem4.6oftheNRCSEissuedAugust23,1993.FPLresponded tothisactionitemin'theresponsetothepreviousSE.TERSection5.6NRCRecommended Action:InPumpReliefRequestsPR-12,PR-13,andPR-14,thelicenseehasrequested relieffromtheASMECode,SectionXl,11IWP-4520(b),

whichrequiresthatthefrequency responserangeofthereadoutsystem(forinstruments usedtomeasurevibration amplitude) shallbefromone-halfminimumspeedtoatleastmaximumpumpshaftrotational speed.Specifically, inPR-12forthereactorcoolantchargingpumps,thecode-required frequency rangeis1.75Hzto3.5Hz.InPR-13fortheintakecoolingwaterpumps,thecode-required frequency rangeis7.38Hzto14.75Hz.InPR-14forthecontainment spraysystemhydrazine pumps,thecode-required frequency rangeis0.875Hzto1.75Hz.Thelicenseeclaimsthatinstruments satisfying theserangerequirements arecommercially unavailable, andthatthelowestavailable responsefrequency is10Hz.Thestaffhas,however,identified equipment withafrequency responserangelessthan10Hz.Thelicenseeshouldfurtherinvestigate theprocurement ofinstruments thatcomplywiththeCoderequirements.

Also,thelicenseehasnotdiscussed therepeatability andaccuracyoftheinstruments tobeused.Thelicenseeshouldadditionally evaluateeachpumptodetermine ifthepumpsaresusceptible todegradation mechanisms thatresultinincreased vibration levelsatfrequencies lowerthan10Hz.Immediate imposition oftheCoderequirements isimpractical duetolimitations inthecurrentinstrumentation anditwouldbeanundueburdentorequiretheplanttodeclarethepumpsinoperable untiltheevaluation ofsubharmonic frequencies and/oravailable instrumentation couldbereviewed.

Reliefwasrecommended foraninterimperiodofoneyearoruntilthenextrefueling outage,whichever islatertoperformtheevaluations intheAugust23,1993SE.Theinterimreliefremainsineffectintothesecondten-yearinterval.

(TERSections2.2.2,2.3.2,2.4.2)12 St.LucieResponse:

Thisactionitemisidentical toitem4.7oftheNRCSEissuedAugust23,1993.FPLresponded tothisactionitemintheresponsetothepreviousSE.TERSection5.7NRCRecommended Action:InPumpReliefRequestPR-17forthecontainment sprayhydrazine pumps,thelicenseeisproposing tomeasurepumpflowrateandvibration quarterly butnotalerttrendtheflowrate.Atrefueling, thepumpflowrateandvibration willbemeasured.

Referring tothelicensee's request,itappearsthatthelicenseewillnottakeanycorrective actionsbasedontheflowratemeasuredquarterly exceeding thealertorrequiredactionvalues.Thelicenseeshouldevaluatetheestablishment ofrequiredactionrangesforquarterly testing.Thelicenseehasreferenced SectionXl11IWP-4150inthereliefrequest,howeverthelicenseehasnotdiscussed thepossibleuseofasymmetrical dampingdevicetoprovideforflowrateaveraging.

Additionally, thelicenseehasnotdiscussed theimpactorburdenofinstalling flowinstrumentation thatcouldbeusedeffectively'or thequarterly test.Reference tothelicensee's AppendixA,pumpprogramtableindicates thatthelicenseewillnotmeasurethepumpinletpressureordifferential pressure.

TheASME/ANSI CodeOMa-1988, Part6,Table3b,requiresthatpumpdischarge pressurebemeasuredforpositivedisplacement pumps.Thelicenseehasnotprovidedabasisfornotmeasuring pumpdifferential ordischarge pressure.

Providedthelicenseedetermines thatthereisnopractical meansofinstalling flowinstrumentation thatisadequateforinservice testingpurposes, deferring flowratemeasurement torefueling outagesmaybeconsidered acceptable.

Thelicenseeshouldevaluatetheprocurement ofdampingdevicesornewflowinstrumentation andmeasureandevaluatequarterly pumpdifferential ordischarge pressureaswellasvibration.

Immediate imposition oftheCoderequirements isimpractical duetolackofadequateinstalled flowinstrumentation, anditwouldbeanundueburdentorequiretheplanttodeclarethesepumpsinoperable untiltheavailability ofnewinstrumentation couldbereviewed.

Therefore, itisrecommended thatreliefbegrantedforaninterimperiodofoneyear,oruntilthenextrefueling outage,whichever islater.Theinterimreliefremainsineffectintothenextten-yearintervalduetobeginAugust9,1993.Intheinterim,thelicenseeshouldestablish acceptance criteriaforRPMversusflowratecorrelation andtakecorrective actionifneeded,andmeasuredischarge

pressure, ifpossible.

(TERSection2.4.3)13 St.LucieResponse:

Thisactionitemisidentical toitem4.8oftheNRCSEissuedAugust23,1993.FPLresponded tothisactionitemintheresponsetothepreviousSE.TERSection5.8NRCRecommended Action:InValveReliefRequestVR-13,thelicenseeisproposing todisassemble andinspectevery10yearseachofthefour12in.discharge linecheckvalvesinthelinesfromthesafetyinjection tankstothereactorcoolantsystem.Exercising closedistobeinaccordance withtheTechnical Specifications regarding pressureisolation valves(P1Vs).Disassembly andinspection shouldonlybeusediftestingwithflowisimpractical.

Thelicenseeshouldprovideananalysisortestresultstoshowthatthenominal52secondsstroketimefortheSITdischarge isolation motor-operated valvestoopenistoolongtopermitsufficient flowtocausethecheckvalvestoreachtheirfull-open position.

Ifafull-open positioncanbereached,thelicenseeshouldperformthetestwithflowtoconfirmdiskposition.

Tosubstantiate theacceptability ofanyalternative technique forverifying thatthevalvesarefullyopen,licensees must,asaminimum,addressanddocumentcertainitemsintheISTprogram,asdescribed inPosition1.However,ifthelicenseedetermines thatfull-stroke exercising withflowisimpractical, thelicenseemay,asdiscussed bytheNRCinGenericLetterPosition2,performvalvedisassembly andinspection asapositivemeansofdetermining thatavalve'sdiskwillfull-stroke exerciseopenorofverifying closurecapability.

Thelicenseeiscurrently proposing tomeetPosition2.Assurance ofproperreassembly willbeprovidedbyperforming aleaktestorpartial-flow testpriortoreturning avalvetoservicefollowing disassembly.

However,thelicenseeintendstoinspecteachcheckvalveonlyonceinthe10yearInservice Inspection programinterval.

AsdefinedinPosition2,inordertosupportextension ofthevalvedisassembly/inspection intervals tolongerthanonceevery6years,i.e.,incasesof"extremehardship,"

licensees shouldperformareviewoftheinstallation ofeachvalveaddressing the"EPRIApplications Guidelines forCheckValvesinNuclearPowerPlants"forproblematic locations.

Thelicenseeshouldjustifytheextremehardship, including adiscussion onwhynon-int'rusive techniques cannotbeused.Additionally, thelicenseestatesthatvalveswillbeleaktestedorpartial-flow testedfollowing disassembly.

Ifpossible, partialvalvestrokingquarterly orduringcoldshutdowns, orafterreassembly, mustbeperformed.

ReliefisgrantedperGenericLetter89-04,Position1,tofull-stroke exercisethevalvesopenwithlessthantheaccidentflowrate,providedallcriteriainPosition1aremet.Ifthelicenseedetermines thatfull-stroke exercising isimpractical, reliefisgrantedperPosition2todisassemble/inspect thesecheckvalves,providedthelicenseemeetsallthecriteriainPosition2,including reviewing theinstallation ofthevalves,demonstrating extremehardship, andpartial-stroke exercising following reassembly andatcoldshutdownifpractical.

Withrespecttoexercising thevalveclosed,OMa-1988Part10,4.3.2.2allowsfull-stroke exercising thatisnotpracticable duringoperation orcoldshutdowntobedeferredtorefueling outages.RelieftousetheTechnical Specification requirements isnotrequiredpursuantto550.55a9(f)(4)(iv),

providedthelicenseeimplements 94.3.2.2andallrelatedrequirements, including Part10,94.3.2.2(h) and96-2.Implementation oftheserelatedrequirements issubjecttoNRCinspection.

(TERSection3.2.2)St.LucieResponse:

Thisactionitemisidentical toitem4.9oftheNRCSEissuedAugust23,1993.FPLresponded tothisactionitemintheresponsetothepreviousSE.TERSection5.9NRCRecommended Action:InValveReliefRequestVR-14,thelicenseeisproposing topartial-stroke exerciseatcoldshutdowns andrefueling outagesthefour12in.safetyinjection checkvalveswhichopentoprovideflowpathsfrom0hesafetyinjection headerstotheRCSandclosetoisolatetheheadersfromthehighpressureofthereactorcoolantsystem.Thelicenseeshouldevaluateifthevalveswillachieveafull-open positionwiththeproposedreducedtestflowrateof3,000GPM.Ifafull-open positioncanbereached,thelicenseeshouldperformthetestingwithflow.Theuseofalternate techniques, suchasnon-intrusive techniques, toverifythatvalveswillfullyopenisacceptable, asdiscussed inGenericLetter89-04,Position1.Ifthevalvescannotbefull-stroke exercised, theNRCdefinedanacceptable alternative to'thefull-stroke exercising requirement inPosition2,whereinitisstatedthattheNRCstaffpositionisthatvalvedisassembly andinspection canbeusedasapositivemeansofdetermining thatavalve'sdiskwillfull-stroke exerciseopenorofverifying closurecapability.

Thelicenseeiscurrently proposing tomeetPosition2.Assurance ofproperreassembly willbeprovidedbyperforming aleaktestorpartial-flow testpriortoreturning avalvetoservicefollowing disassembly.

However,thelicenseeintendstoinspecteachcheck15 valveonlyonceinthe10yearinservice inspection programinterval.

AsdefinedinPosition2,inordertosupportextension ofthevalvedisassembly/inspection intervals tolongerthanonceevery6years,i.e.,incasesof"extremehardship,"

licensees shouldperformareviewoftheinstallation ofeachvalveaddressing the"EPRIApplications Guidelines forCheckValvesinNuclearPowerPlants"forproblematic locations.

Thelicenseeshouldalsoincludeadiscussion onwhynon-intrusive techniques cannotbeused.Additionally, thelicenseestatesthatthevalvewillbeleaktestedorpartial-flow testedfollowing disassembly.

Position2requiresthat,ifpossible, partialvalvestrokingquarterly orduringcoldshutdowns, orafterreassembly, mustbeperformed.

ReliefisgrantedperGenericLetter89-04,Position1,tofull-stroke exercisethevalvesopenwithlessthantheaccidentflowrate,providedallcriteriainPosition1aremet.Ifthelicenseedetermines thatfull-stroke exercising isimpractical, reliefisgrantedperPosition2todisassemble/inspect thesecheckvalves,providedthelicenseemeetsa'llthecriteriainPosition2,including reviewing theinstallation ofthevalves,demonstrating extremehardship, andpartial-stroke exercising following reassembly andatcoldshutdownifpractical.

Withrespecttoexercising thevalveclosed,verification thatavalveisintheclosedpositioncanbedonebyvisualobservation, byanelectrical signalinitiated byaposition-indicating device,byobservation ofappropriate pressureindication inthesystem,byleaktesting,orbyotherpositive'eans.

Thelicenseedoeshaveinstrumentation tocontinuously monitorupstreampressure.

BasedontheTechnical Specifications, itappearsthatfollowing thepartial-stroke exerciseatcoldshutdowns, verification thatthevalveshaveclosedwillbeperformed andreliefwouldnotberequired.

Thelicenseeshouldexercisethesevalvesclosedatcoldshutdowns orrevisetherequestaccordingly.

(TERSection3.2.3)St.LucieResponse:

Thisactionitemisidentical toitem4.10oftheNRCSEissuedAugust23,1993.FPLresponded tothisactionitemintheresponsetothepreviousSE.TERSection5.10NRCRecommended Action:ThelicenseestatesinVR-1thatvalvetestingneednotbeperformed moreoftenthanonceeverycoldshutdown, exceptasprovidedforinIWV-3417(a),

whichrequiresmorefrequenttestingasaresultofdegradedstroketimes.TheASMEissuedaCodeinterpretation (Xl-1-92-41) thatstatesthatitistheintentofSectionXl,IWV-3410and3520,torequiretestingofvalveseverythreemonths,including duringextendedshutdownperiods,forvalvesotherthanthoseinsystemsdeclaredinoperable ornotV requiredtobeoperable(IWV-3416).

Therefore, duringplantshutdownperiods,whenthevalvescanbeexercised, thelicenseeshouldexercisevalveseverythreemonthsinaccordance withtheCodeorprovideareliefrequest.Additionally, ifspecificvalvescannotbetestedduringanycoldshutdown(i.e.,dueto"thelackofplantconditions neededfortesting"),

specificapprovalisrequiredtodefertesting.Thelicenseeshouldrevisethecoldshutdownjustifications, asrequired, todiscusstheconditions underwhichtestingcannotbeperformed duringanycoldshutdowns.

St.LucieResponse:

ReliefrequestVR-1hasbeenwithdrawn.

OMa-1988, Part10,4.2.1.2(g)and4.3.2.2(g)havebeenauthorized forimplementation.

Theprovision thatvalvetestingneednotbeperformed moreoftenthanonceeverycoldshutdownhasbeendeleted.Valvesthatcanbeexercised duringcoldshutdownperiodswillbeexercised everythreemonthsinaccordance withtheCodeortheywillbedeclaredoutofserviceuntilsuchtestingcanbecompleted.

Theplantadministrative procedure governing ASMECodetesting,ofpumpsandvalvesstatesthefollowing:

"Iftheunitremainsincoldshutdownforgreaterthan90days,thecoldshutdownvalvesshallbeexercised again.Plantstartupshouldnotbedelayedbecauseoftestingaslongasareasonable goodfaitheffortwasmade."TERSection5.11NRCRecommended Action:Forthefollowing checkvalves,thelicenseehasnotidentified anyclosedpositiontestingrequirement inthevalveprogramtable.Thelicenseeshouldreviewthesafetyfunctions ofthesevalvesandrevisetheprogram,ifnecessary:

VR-5:VR-7'R-8'R-11:

VR-21:VR-32:V-2177,2190,2191and2526V-07000andV-07001V-3401andV-3410V-3113,V-3133,V-3143andV-3766V-07129andV-07143V-3101St.LucieResponse:

V-2177:Closureisnotrequiredasthisfunctionisprovidedbynormallyclosedisolation valve,V-2514.V-2190:Thereisnorequirement forthischeckvalvetocloseduringaSIAStopreventrecirculation oftheemergency borateflowbacktotheBAMTsorthesuctionoftherunningBAMpumps.Thisisbecauseanyleakagepastthevalvewouldbeavailable tothechargingpumpsthroughthegravityfeedline.17 V-2191:Closureisnotrequiredasthisfunctionisprovidedbynormallyclosedisolation valve,V-2504.Additionally, ifV-2504wereopenandV-2191failedtocloseanyinventory divertedtotheRWTwouldstillbeavailable foremergency borationfromtheRWT.V-2526:Thereisnosafetyrelatedrequirement forthisvalvetoclose.Theonlypositionthisvalveisrequiredtobeinduringanaccidentisopen,allowingboricacidtothesuctionofthechargingpumpsviatheboricacidmakeuppumpsorthegravityfeedlinesfromtheboricacidmakeuptanks.V-07000andV-07001:Closureisnotrequiredasthisfunctionisredundantly providedbytheLPSIpumpsuctionisolation valves.V-3401andV-3410:Closureisnotrequiredasthisfunctionisredundantly providedbythepumpdischarge checkvalves.V-3113,V-3133,V-3143andV-3766:Closureofthesevalvesisnotrequiredasthisfunctionisredundant totheHPSIheadermotoroperatedisolation valves.ThesevalvesarenotRCSpressureisolation valves.V-07129andV-07143:Closurefunctionisprovidedbythepumpsdischarge manualisolation valves(V-07130andV-07145)duringshutdowncooling.Thereisnosourceofbackflowinthecontainment spraymodeofoperation.

V-3101:Sincethevalveisnormallyisolatedbyanupstreammanualisolation valve,exercising inthecloseddirection isnotrequired.

TERSection5.12NRCRecommended Action:ForreliefrequestsVR-8,VR-10,VR-12,thelicenseestatesthatthealternate testingsatisfies therequirement ofGenericLetter89-04,Position1.Asdiscussed inPosition1,theNRCstaffpositionisthatpassingthemaximumrequiredaccidentcondition flowratethroughthevalveisanacceptable full-stroke.

Itisassumedthatthefull-flow exerciseproposedbythelicenseecomplieswiththisposition.

Ifothertechniques areused,suchasnon-intrusive techniques atreducedflowrate,thelicenseemustcomplywiththesixcriteriarequiredbyPosition1.Thelicenseeshouldclarifythisstatement ineachrequest.St.LucieResponse:

ValvereliefrequestsVR-8,10and12havebeendeletedwiththejustifications fortesting'the valvesduringrefueling outagesnowdescribed inAppendixF:Refueling OutageJustifications.

Thesevalvesarefullstrokedbypassingthemaximumrequiredaccidentcondition flowratethroughthevalves.OMa-1988, Part10,%4.3.2.2isusedtojustifydeferring thetestingtorefueling outages.18 TERSection5.13NRCRecommended Action:Thelicenseeshouldclarifywhythevalveprogramtablereferences VR-19whenitindicates thatV-3414andV-3427willbetestedclosedquarterly.

St.LucieResponse:

Thereference toVR-19hasbeenremovedfromthevalveprogramtableforvalvesV-3414andV-3427.TERSection5.14NRCRecommended Action:Thelicenseehasstatedthatthevalvesreferenced inVR-12"willbepartial-stroke exercised totheopenpositionandsubsequently strokedclosedduringcoldshutdowns perVR-1"andthebasisonlydiscusses theimpracticality oftestingquarterly.

However,thevalveprogramtableidentifies thetestfrequency as"SP"asperVR-12andnot"CS",andthelicenseeadditionally statesthatthevalveswillbeverifiedclosedduringthePIVleaktests.Itisassumedthatthevalvesareexercised totheclosedpositioninaccordance withtheCodeduringcoldshutdowns, inadditiontothePIVleaktest.Ifexercising thevalvesclosedatcoldshutdowns isimpractical, therequest's basismustberevisedtodiscusstheimpracticality.

St.LucieResponse:

Thevalveprogramtablehasbeenrevisedtoindicatethatthevalvesaretobetestedclosedduringcoldshutdowns.

Thebasisfortestingthesevalvesatcoldshutdowns isdescribed inAppendixE:ColdShutdownJustifications.

TERSection5.15NRCRecommended Action:Fromareviewoftheapplicable flowdiagrams, 2998-G-078, Sheet130,Rev.4,andthecontinuation onflowdiagram2998-G-088, Rev.19,forvalvesV-3104andV-3105,itappearsthatthereisaflowelementoneachrecirculation line,i.e.,FE-03-1-1 andFE-03-2-1, whichcouldbeusedtomeasuretherecirculation lineflow.ThelicenseeshouldclarifywhytheseelementscannotbeusedinReliefRequestVR-28.Additionally, thelicenseeshouldexplainwhythequarterly LPSIpumpflowtestdoesnotresultinarecirculation flowsufficient tocausefull-stroke exercising ofthesevalves.OMa-1988Part10.%4-3-2-2allowsfull-stroke exercising thatisnotpracticable duringplantoperation orcoldshutdowns tobedeferredtorefueling outages.Therefore, providedthelicenseefurnishes information onwhytheinstalled flowelementsornon-intrusive techniques cannotbeusedtoverifythevalves'ull-stroke openquarterly, thereliefrequested bythelicenseeis19 coveredbytherulemaking, effective September 8,1992,asdescribed above,andapprovalcouldberecommended.

However,ifquarterly full-stroke exercising ispractical, thelicenseemustcomplywiththeCoderequirements.

Thelicenseeshouldrevisethereliefrequest.St.LucieResponse:

FlowelementsFE-03-1-1 andFE-03-2-1 arestraponultrasonic flowinstruments designedtoannunciate lowflowalarmsinthecontrolroomtowarnoperators oflowflowconditions associated withtheLPSIpumps.Theultrasonic flowinstruments areusedexclusively toprovidelowflowalarms.TheflowelementsandalarmswereaddedtotheoriginaldesignoftheLPSIsystemtoaddressNRCquestions relatedtoECCSpumpoperation.

Theinstruments weredesignedtoalerttheoperators topumplowflowconditions, butwereneverintendedtohavetheaccuracyneededtoquantifythedesignedflowrates fromthepumpthroughthecheckvalves.Actualpumprecirculation flowratesaresignificantly limitedbytheflowrestriction orificesineachrecirculation line.Actualflowrates asmeasuredbylevelincreases intheRWTovertimehaveproventobeonlyminimally greaterthanthe100gpmflowratethattheorificewasdesignedtoprovide.Sincetheorificeissuchamajorcontributor totheflowlossesinthelinewiththecheckvalveonlycontributing asmallportionoftheflowrestriction, ahighdegreeofaccuracyinflowmeasurement isneededtodetectdegradation ofthecheckvalves.StraponflowelementsofthenatureofFE-03-1-1 andFE-03-2-1 donothavetherequiredaccuracy.

Usingtheacousticflowelementstoverifythecheckvalvesopenwouldbeimpractical.

Theaccuracyofthestraponultrasonic devicesisquestionable forthisapplication andcouldunnecessarily placethecheckvalvesoutofserviceorpreventcheckvalvedegradation frombeingdetected.

Thetestingdescribed intheprogramisadequatetoensurethecheckvalvesareperforming theirrequiredsafetyfunction.

Precisemeasurements ofpumprecirculation flowratesareobtainedeachrefueling outagebymeasuring theRWTlevelincreaseovertimewhiledrainingthepressurizer orrefueling cavity.Duringthequarterly LPSIpumpruns,flowthroughtherecirculation linesisverifiedbydetermining thatheatisbeingremovedfromthepumps.Pumpheatremovalisthemajordesigncriteriafortherecirculation lines.Information fromthevalvemanufacturer statesthatflowvelocities of32.8ft/secarerequiredforthecheckvalvestoreachtheirfullopenposition.

Duetotheflowreducingorifice,flowvelocities ofonlyabout10ft/seccanbeachieved.

Thelackofsufficient flowtocausefull-stroke exercising ofthesevalvesmakestheuseofnon-intrusive techniques impractical.

TERSection5.16NRCRecommended Action:20

Anomalies identified duringthereviewofcoldshutdownjustifications areidentified below:Thefollowing valvesarenotexercised closed.Thelicenseeshouldverifythatthevalvesdonotperformasafetyfunctionintheclosedposition, orrevisetheprogramasappropriate:

RC-1:V-1460throughV-1466,reactorvesselandpressurizer gasvents;1in.normally-closed, solenoid-operated globevalves.RC-2:V-1474andV-1475,pressurizer power-operated reliefvalves;3in.solenoid-operated, normallyclosedglobevalves.CV-3.2:V-2431,auxiliary pressurizer spraycheckvalve;2in.normallyclosedcheckvalve.CV-3.3:V-2440,chargingpumpdischarge checkvalvetosafetyinjection; 2in.normallyclosedcheckvalve.Sl-l.l:V-3106andV-3107,LPSIpumpdischarge checkvalves;10in.normallyclosedcheckvalves.Sl-3.1:V-03002throughV-03005,Safetyinjection tank(SIT)drainlinecheckvalves;1in.normallyclosedcheckvalves.FW-1.2:V-09107,V-09123,andV-09139,auxiliary feedwater pumpdischarge checkvalves;4in.normallyclosedcheckvalves.FW-1.3:V-09119,V-09135,V-09151,andV-09157,auxiliary feedwater supplycheckvalves;4in.normallyclosedcheckvalves.CC-1.2:HCV-14-3A&B,shutdownheatexchanger returnvalves;14in.normallyopen,failopen,diaphragm-operated butterfly valves.St.LucieResponse:

RC-1:V-1460throughV-1466:Testinginthecloseddirection isnotrequiredasthelossofreactorcoolantthroughtheone-inchlinesisjudgedinsignificant fromtheaspectofaccidentmitigation.

Theselinesareequippedwithflowrestricting orificeslimitingthelossofcoolantliquidtowithinmakeupcapacity.

RC-2:V-1474andV-1475:Closureis,notrequiredasthisfunctionisprovidedbythePORVblockvalves(V-1476andV-1477)whicharecreditedforisolating theassociated PORV.CV-3.2:V-2431:Thisvalveisnotrequiredtoclosetoperformasafetyfunction.

Thisvalveisnotatahighpressure/low pressureinterface.

Passivefailureofupstreampipingisnotconsidered credibleasitisdesignedtooperateatpressures exceeding thenormalRCSpressure.

Nosinglefailureofanyactivecomponent canoccurthatwoulddivertflowfromtheRCSthroughthecharging21

headerifthisvalveweretofailtoclose.Isolation valvesSE-02-3andSE-02-4canalsobeclosedifrequired.

Additional'ly atleastonechargingpumpwillbeavailable tosupplyflowthroughthisvalveduringanysinglefailurescenario.

CV-3.3:V-2440:ClosureisnotrequiredsincethelineismanuallyisolatedbyvalveV-2340.V-2340isonlyopenedtoalignemergency borationflowfromthechargingpumpsthroughtheHPSIheaders.Underthiscondition V-2440isrequiredtoremainopenandhasnorequirement toclose.Sl-1.1:V-3106andV-3107:ThesevalvesarenotrequiredtoclosebecausetheLPSIpumpsareoperating orareisolatedfromadjoining systemsbyshutdowncoolingheatexchanger isolation valves,LPSIheaderisolation valves,andsafetyinjection headercheckvalvesduringanaccident.

Thusclosuretestingisnotrequired.

Sl-3.1:V-03002throughV-03005:ClosureisnotrequiredasthisfunctionisprovidedbyvalvesSE-03-1AthroughSE-03-1D.

FW-1.2:V-09107,V-09123,andV-09139:ClosureisnotrequiredasthisfunctionisprovidedbyvalvesSE-09-2throughSE-09-5.(seeresponsetosection5.2.A.2).

FW-1.3:V-09119,V-09135,V-09151,andV-09157:ClosureisnotrequiredasthisfunctionisprovidedbyvalvesMV-09-9throughMV-09-12andmanualvalvesV-09120,V-09136,V-09152,V-09158.(seeresponsetosection5.2.A.2)CC-1.2:HCV-14-3A&B:Thesevalvesareclosedduringnormaloperation todivertcomponent coolingwaterflowfromtheshutdowncoolingheatexchanger toothercomponents requiring coolingtosupportnormalpoweroperations.

Thevalvesopenedtosupplycoolingwatertotheshutdowncoolingheatexchanger forplantcooldownorforcoolingcontainment spraypumpdischarge forcontainment cooling.Thereisnorequirement forthisvalvetocloseotherthantosupportnormalplantoperations whichisnotrequiredtomitigatetheconsequences ofanaccidentortoshutdowntheplant.NRCRecommended Action:CV-3.5:V-2523,charginglineisolation valve;2in.diaphragm-operated, lockedopenglobevalve.ForV-2523,thefailuremodeistheopenposition.

Sincethevalveisonlyexercised totheclosedposition, thelicenseeshouldexplainwhynofailsafetesting(totheopenposition) isindicated inthevalveprogramtables.St.LucieResponse':

22 Thisairoperated, failopenvalveislockedopentoallowboroninjection tothereactorcoolantsystem.Thisvalvemayberequiredtocloseshouldthealternate borationflowpathviatheHPSIheaderbeutilized, inwhichcasethevalvewouldnotberequiredtobereopened.

Theabilityofthisvalvetostroketotheopenpositionortofailtotheopenpositionisnotasafetyrelatedfunctionandarenotrequiredtobetested.NRCRecommended Action:Sl-1.2:V-3463,Isolation ValveforSITTest/RWTReturnHeader;2in.manually-operated, lockedclosedgatevalve.According tothe.,flowdiagram,2998-G-078, Sheet'130, thetwooutboardcontainment isolation valvesforpenetration 41,2I-SE-03-2A and2B,arenormallyclosedandinparalleltoeachotherandinserieswithV-3463.TheValveProgramTablesindicatethatbothoftheoutboardvalvesareexercised openedquarterly.

Furthermore, Technical Specification Table3.6-2forcontainment isolation valvesindicates thatV-3463istestableduringplantoperation.

Therefore, thelicenseeshouldexplainwhyV-3463cannotbeexercised openquarterly.

St.LucieResponse:

Thejustifications fornottestingthisvalvequarterly hasbeenreviewedinresponsetothisSE.Thevalveprogramtablehasbeenrevisedtoindicatethatmanually-operated valveV-3463istobetestedquarterly.

Thecoldshutdownjustification forthisvalvehasbeendeleted.NRCRecommended Action:Sl-2.1:V-3114,V-3124,V-3134,andV-3144,LPSIcoldleginjection checkvalves;6in.checkvalves,normallyclosed.Thelicenseehasnotprovidedan'explanation ofwhythevalvescannotbeverifiedclosedquarterly.

Thereappeartobedrainortestconnections available bothimmediately upstreamandimmediately downstream ofeachofthesevalveswhichmaybeabletobeusedforbothaquarterly part-stroke opentestandaquarterly testforclosure.Therefore, thelicenseeshouldexplainwhysuchtestingcouldnotbeperformed quarterly.

St.LucieResponse:

Thejustification fornottestingthesevalvesquarterly hasbeenincludedinRevision1oftheSt.LucieUnit2ISTProgramSecondTenYearInterval.

Thiscoldshutdownjustification statesthefollowing:

"Duringnormalplantoperation, theLPSIPumpscannotdevelopsufficient discharge pressuretopumpthroughthesevalvestotheRCSandexercisethemintheopendirection.

Theclosuretestscan23 onlybeperformed attheendoftheoutageafterthevalveshavebeenexercised openearlierbythepartialstrokeopentests."Thesearesimplecheckvalveswithnoexternalmeansofpositionindication.

Tocyclethevalvesopenutilizing thedrainortestconnections upstreamanddownstream ofeachofthesevalvesduringnormalplantoperation isimpractical.

Thedrainvalvedownstream ofthecheckvalvescannotbeopenedandusedasaflowpathforpartstrokingthecheckvalvesbecausetheyareexposedtothetotalvolumeandpressureoftheSIT.Theonlypractical meansofverifying closureisbyperforming aleaktestorbackflowtest.Thiswouldonlyconstitute avalidclosurestroketestofthevalvesonlyiftheycouldbeverifiedopenpriortothetest.Totestthecheckvalvesforclosuretheupstreamsideofthecheckvalvesmustbedepressurized anddrainedinordertocollectthebackleakagethroughthecheckvalves.Performing thistestrequiresaconsiderable effortsuchthattestingduringoperation wouldconstitute anunreasonable burdenontheplantstaff.Inaddition, thetestpersonnel musthandleuptoseveralgallonsofcontaminated waterpertest,someofwhichcouldbeunderpressurewhenfirstvented.Performing thistestprocedure eachquarterwouldresultinunnecessary personnel radiation exposures andpossiblepersonnel contaminations NRCRecommended Action:Sl-2.3:V-3545,V-3664,andV-3665,shutdowncoolingisolation andcrossconnectvalves,10in.motor-operated, lockedclosedgatevalves.ThelicenseeshouldexplainwhyafailureofV-3664andV-3665intheopenpositionwouldjeopardize theintegrity oftheLPSISystemsincetheShutdowncoolingsystemvalvesV-3480,V-3481,V-3651andV-3652areimmediately upstreamandinterlocked closedasdescribed forS1-2.2.Similarly, thelicenseeshoulddescribeunderwhatconditions thecrossconnectvalveV-3545isopenedduringtheshutdowncoolingmodeofoperation andalsojustifythatitsfailureduringnormalplantoperation wouldjeopardize theintegrity oftheLPSISystemsincetheitappearsthatonlyshutdowncoolingwouldbeaffectedandthatshutdowncoolingcouldstillbeaccomplished withthevalveopen.St.LucieResponse:

Thejustifications fornottestingthesevalvesquarterly havebeenreviewedinresponsetothisSE.Thevalveprogramtablehasbeenrevisedtoindicatethatshutdowncoolingisolation valvesV-3664andV-3665aretobetestedquarterly.

Thecoldshutdownjust).fication forthesevalveshasbeendeleted.a24 Therevisedjustification fornottestingshutdowncoolingcrossconnectvalveV-3545quarterly hasbeenincludedinRevision1oftheSt.LucieUnit2ISTProgramSecondTenYearInterval.

Thiscoldshutdownjustification statesthefollowing:

"Thebreakerforthisvalveisrequiredtobedeenergized'xcept duringplantcoldshutdownorrefueling modestomeetpositionC.1toRegulatory Guide1.63revision2.Thisistoprotectthemechanical integrity ofthevalveselectrical penetration assemblyshouldthemaximumshort-circuit vstimecondition occurgivensinglerandomfailureofcircuitoverloadprotection devices."

NRCRecommended Action:MS-1.1:HCV-08-1A&B,mainsteamisolation valves;34in.normallyopen,piston-operated'globe valves.ThelicenseeshouldindicateintheTableswhatisthefailuremodepositionofthesevalves.St.LucieResponse:

TheTableshavebeenrevisedtoindicatethatthefailuremodeofthemainsteamisolation valves,HCV-08-1A&B,istofailcloseinthecurrentrevisionoftheprogram.Thetablehasalsobeenrevisedtoindicatethatthevalvesaretobefailclosetestedduringthecoldshutdownclosestroketest.NRCRecommended Action:MS-1.2:V-08130andV-08163,steam-driven AFWpumpsteamsupplycheckvalves;4in.normallyopencheckvalves.Inthevalveprogramtables,thesecheckvalvesarepart-stroke exercised totheopenpositionquarterly, andfull-stroke exercised totheopenpositionatcoldshutdowns.

ValvereliefrequestVR-31calledforpart-stroke exercising totheopenpositionmonthlyandfull-stroke exercising atcoldshutdowns.

Thelicenseeshouldclarifytheapparentdiscrepancies inthetestingfrequencies.

St.LucieResponse:

ValvereliefrequestVR-31hasbeenrevisedtoindicatethatthepart-stroke exercising totheopenpositionofthesteam-driven AFWpumpsteamsupplycheckvalves,V-08130andV-08163,istobeperformed quarterly.

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